With Dell's 65-watt power supply specifically designed to power your Dell laptop, you can always rely on high computing performance. You can use the power supply to connect your system to the power supply for operation or to charge the battery. This lightweight and small 65 watt power adapter is the perfect portable power source wherever you are - at home, in the office or on the go. It's best to equip yourself with two power adapters so you have one for your desk and one in your bag for easy access on the go.